Blocking or Bypass of Heater Core lines, which one's better?

[lowslowbenz]

^

I'd like to think so. My bypass tubes are all outside already (engine bay) where its easy to check should they leak. The system holds a bit more coolant too (as compared to a plugged one), so I think that's one benefit there.

[JohnM]

I think most Japanese FWD engine designs route the bypass under the intake manifolds between the block and the firewall.

[jvnj]

^

I'd like to think so. My bypass tubes are all outside already (engine bay) where its easy to check should they leak. The system holds a bit more coolant too (as compared to a plugged one), so I think that's one benefit there.

Ah yes, a bit more coolant. Thanks for your comments, Sir LSB!